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   "source": [
    "# 多语言笔记：内核中的各种路径"
   ]
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   "source": [
    "搞清楚，内核执行时的各种默认目录、路径，方便解决一些引用、文件等跟路径有关的问题。"
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   "source": [
    "// C#中，内核执行时，各种默认路径如下：\n",
    "\n",
    "using System;\n",
    "using System.IO;\n",
    "using System.Threading;\n",
    "using System.Threading.Tasks;\n",
    "using System.Diagnostics;\n",
    "using System.Reflection;\n",
    "using Microsoft.Extensions.DependencyInjection;\n",
    "\n",
    " var pathDic = new Dictionary<string, (string desc, string? path)>() \n",
    " {\n",
    "     //当前运行的exe的完整路径，包含exe文件名，只用于WinForm\n",
    "     {\"Application.ExecutablePath\",(\"程序集基完整路径(仅WinForm)\", \"Application.ExecutablePath 只适用于WinForm\") },\n",
    "\n",
    "     //程序的启动路径：只用于WinForm\n",
    "     {\"Application.StartupPath\",(\"程序集启动路径(仅WinForm)\", \"Application.StartupPath 只适用于WinForm\") },\n",
    "\n",
    "     //当前执行的exe或启动项目的路径，通过AppContext\n",
    "     {\"AppContext.BaseDirectory\",(\"执行或启动路径\",AppContext.BaseDirectory) },  \n",
    "\n",
    "     //当前执行的exe的目录，不包含exe名，使用AppDomain\n",
    "     {\"AppDomain.CurrentDomain.BaseDirectory\",(\"程序集解析程序用于探测程序集的基目录\",AppDomain.CurrentDomain.BaseDirectory) }, \n",
    "\n",
    "     //程序安装或启动基目录  包含应用程序的目录的名称\n",
    "     {\"AppDomain.CurrentDomain.SetupInformation.ApplicationBase\",(\"程序安装或启动基目录\",AppDomain.CurrentDomain.SetupInformation.ApplicationBase) }, \n",
    "\n",
    "     //当前进程的主模块路径，包含exe名\n",
    "     {\"Process.GetCurrentProcess().MainModule.FileName\",(\"当前进程的主模块路径\",Process.GetCurrentProcess()?.MainModule?.FileName) }, \n",
    "\n",
    "     //环境变量：用户当前工作目录的完整限定路径\n",
    "     {\"Environment.CurrentDirectory\",(\"用户当前工作目录的完整限定路径\",Environment.CurrentDirectory) }, \n",
    "\n",
    "     //环境变量：当前exe的完整路径，包含exe名，通过命令行参数\n",
    "     {\"Environment.GetCommandLineArgs()[0]\",(\"当前exe的完整路径\",Environment.GetCommandLineArgs()[0]) }, \n",
    "\n",
    "     //当前工作目录的路径（可变）\n",
    "     {\"Directory.GetCurrentDirectory\",(\"当前工作目录的路径（可变）\",Directory.GetCurrentDirectory()) },\n",
    "     \n",
    "     //当前Assembly的加载路径，包含dll或exe名\n",
    "     {\"Assembly.GetExecutingAssembly().Location\",(\"当前Assembly的加载路径\",Assembly.GetExecutingAssembly().Location) },\n",
    "\n",
    "     //入口程序集的路径\n",
    "     {\"Assembly.GetEntryAssembly().Location\",(\"入口程序集的路径\",Assembly.GetEntryAssembly()?.Location) },\n",
    "\n",
    "     //已过时：当前程序集的CodeBase路径，可能为file URI格式\n",
    "     {\"Assembly.GetExecutingAssembly().CodeBase\",(\"当前程序集的CodeBase路径\",Assembly.GetExecutingAssembly()?.CodeBase) },\n",
    "\n",
    "     //已过时：入口程序集的CodeBase路径，可能为file URI格式\n",
    "     {\"Assembly.GetEntryAssembly().CodeBase\",(\"入口程序集的CodeBase路径\",Assembly.GetEntryAssembly()?.CodeBase) },\n",
    " };\n",
    "\n",
    " var message = string.Empty;\n",
    " foreach (var item in pathDic)\n",
    " {\n",
    "     message += $\"{item.Key} => {item.Value.path}{Environment.NewLine}\";\n",
    " }\n",
    "\n",
    " Console.WriteLine(message);"
   ]
  }
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